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spec: describe an edge case for slice expression of nil slice 

Change-Id: I8c0e2b37e7e8cb4db6ad0b456fde7eb908ffbd04
Reviewed-on: https://go-review.googlesource.com/c/go/+/430836
Reviewed-by: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
This commit is contained in:
Cuong Manh Le 2022-09-14 11:51:59 +07:00 committed by Gopher Robot
parent 4b58b30778
commit 334984a92a
1 changed files with 3 additions and 0 deletions
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doc/go_spec.html
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@ -3934,6 +3934,9 @@ var a [10]int
s1 := a[3:7] // underlying array of s1 is array a; &amp;s1[2] == &amp;a[5]
s2 := s1[1:4] // underlying array of s2 is underlying array of s1 which is array a; &amp;s2[1] == &amp;a[5]
s2[1] = 42 // s2[1] == s1[2] == a[5] == 42; they all refer to the same underlying array element
var s []int
s3 := s[:0] // s3 == nil
</pre>